Log Message:
devel/difftastic: update to 0.61.0

Recommended git configuration has changed! Please update your ~/.gitconfig to \ 
match the git instructions, regardless of your difftastic version.

Display
 - Side-by-side display is now smarter on very wide terminals when the content \ 
is narrow.

Diffing
 - Fixed a crash (introduced in 0.60) when the final line in a file does not \ 
have a trailing newline and occurs more than once in the file.

Build
 - difftastic now requires Rust 1.66 to build.